30724070 has 16 divisors (see below), whose sum is σ = 59557680. Its totient is φ = 11344224.

The previous prime is 30724063. The next prime is 30724081. The reversal of 30724070 is 7042703.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118040 + ... + 118299.

It is an arithmetic number, because the mean of its divisors is an integer number (3722355).

Almost surely, 2^30724070 is an apocalyptic number.

30724070 is a deficient number, since it is larger than the sum of its proper divisors (28833610).

30724070 is a wasteful number, since it uses less digits than its factorization.

30724070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236359.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 30724070 is about 5542.9297307471. The cubic root of 30724070 is about 313.2032418557.

Adding to 30724070 its reverse (7042703), we get a palindrome (37766773).

The spelling of 30724070 in words is "thirty million, seven hundred twenty-four thousand, seventy".